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Add example how to handle PUT and POST in C++

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This commit is contained in:
bel
2015-10-27 21:40:48 +01:00
parent baee5d3ddc
commit 64e6264676
1 changed files with 84 additions and 8 deletions
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92
examples/embedded_cpp/embedded_cpp.cpp
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@ -25,7 +25,7 @@ class ExampleHandler : public CivetHandler
bool bool
handleGet(CivetServer *server, struct mg_connection *conn) handleGet(CivetServer *server, struct mg_connection *conn)
{ {
mg_printf(conn, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n"); mg_printf(conn, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n");
mg_printf(conn, "<html><body>\r\n"); mg_printf(conn, "<html><body>\r\n");
mg_printf(conn, mg_printf(conn,
"<h2>This is an example text from a C++ handler</h2>\r\n"); "<h2>This is an example text from a C++ handler</h2>\r\n");
@ -51,7 +51,7 @@ class ExitHandler : public CivetHandler
bool bool
handleGet(CivetServer *server, struct mg_connection *conn) handleGet(CivetServer *server, struct mg_connection *conn)
{ {
mg_printf(conn, "HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\n\r\n"); mg_printf(conn, "HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\nConnection: close\r\n\r\n");
mg_printf(conn, "Bye!\n"); mg_printf(conn, "Bye!\n");
exitNow = true; exitNow = true;
return true; return true;
@ -67,7 +67,7 @@ class AHandler : public CivetHandler
struct mg_connection *conn) struct mg_connection *conn)
{ {
std::string s = ""; std::string s = "";
mg_printf(conn, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n"); mg_printf(conn, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n");
mg_printf(conn, "<html><body>"); mg_printf(conn, "<html><body>");
mg_printf(conn, "<h2>This is the A handler for \"%s\" !</h2>", method); mg_printf(conn, "<h2>This is the A handler for \"%s\" !</h2>", method);
if (CivetServer::getParam(conn, "param", s)) { if (CivetServer::getParam(conn, "param", s)) {
@ -98,7 +98,7 @@ class ABHandler : public CivetHandler
bool bool
handleGet(CivetServer *server, struct mg_connection *conn) handleGet(CivetServer *server, struct mg_connection *conn)
{ {
mg_printf(conn, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n"); mg_printf(conn, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n");
mg_printf(conn, "<html><body>"); mg_printf(conn, "<html><body>");
mg_printf(conn, "<h2>This is the AB handler!!!</h2>"); mg_printf(conn, "<h2>This is the AB handler!!!</h2>");
mg_printf(conn, "</body></html>\n"); mg_printf(conn, "</body></html>\n");
@ -115,15 +115,91 @@ class FooHandler : public CivetHandler
/* Handler may access the request info using mg_get_request_info */ /* Handler may access the request info using mg_get_request_info */
const struct mg_request_info *req_info = mg_get_request_info(conn); const struct mg_request_info *req_info = mg_get_request_info(conn);
mg_printf(conn, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n"); mg_printf(conn, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n");
mg_printf(conn, "<html><body>");
mg_printf(conn, "<h2>This is the Foo handler!!!</h2>"); mg_printf(conn, "<html><body>\n");
mg_printf(conn, "<h2>This is the Foo GET handler!!!</h2>\n");
mg_printf(conn, mg_printf(conn,
"<p>The request was:<br><pre>%s %s HTTP/%s</pre></p>", "<p>The request was:<br><pre>%s %s HTTP/%s</pre></p>\n",
req_info->request_method,
req_info->uri,
req_info->http_version);
mg_printf(conn, "</body></html>\n");
return true;
}
bool
handlePost(CivetServer *server, struct mg_connection *conn)
{
/* Handler may access the request info using mg_get_request_info */
const struct mg_request_info *req_info = mg_get_request_info(conn);
size_t rlen, wlen;
size_t nlen = 0;
size_t tlen = (size_t)req_info->content_length;
char buf[1024];
mg_printf(conn, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n");
mg_printf(conn, "<html><body>\n");
mg_printf(conn, "<h2>This is the Foo POST handler!!!</h2>\n");
mg_printf(conn,
"<p>The request was:<br><pre>%s %s HTTP/%s</pre></p>\n",
req_info->request_method, req_info->request_method,
req_info->uri, req_info->uri,
req_info->http_version); req_info->http_version);
mg_printf(conn, "<p>Content Length: %li</p>\n", (long)tlen);
mg_printf(conn, "<pre>\n");
while (nlen < tlen) {
rlen = tlen - nlen;
if (rlen>sizeof(buf)) {rlen=sizeof(buf);}
rlen = mg_read(conn, buf, rlen);
if (rlen<=0) break;
wlen = mg_write(conn, buf, rlen);
if (rlen!=rlen) break;
nlen += wlen;
}
mg_printf(conn, "\n</pre>\n");
mg_printf(conn, "</body></html>\n"); mg_printf(conn, "</body></html>\n");
return true;
}
bool
handlePut(CivetServer *server, struct mg_connection *conn)
{
/* Handler may access the request info using mg_get_request_info */
const struct mg_request_info *req_info = mg_get_request_info(conn);
size_t rlen, wlen;
size_t nlen = 0;
size_t tlen = (size_t)req_info->content_length;
char buf[1024];
mg_printf(conn, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n");
mg_printf(conn, "<html><body>\n");
mg_printf(conn, "<h2>This is the Foo PUT handler!!!</h2>\n");
mg_printf(conn,
"<p>The request was:<br><pre>%s %s HTTP/%s</pre></p>\n",
req_info->request_method,
req_info->uri,
req_info->http_version);
mg_printf(conn, "<p>Content Length: %li</p>\n", (long)tlen);
mg_printf(conn, "<pre>\n");
while (nlen < tlen) {
rlen = tlen - nlen;
if (rlen>sizeof(buf)) {rlen=sizeof(buf);}
rlen = mg_read(conn, buf, rlen);
if (rlen<=0) break;
wlen = mg_write(conn, buf, rlen);
if (rlen!=rlen) break;
nlen += wlen;
}
mg_printf(conn, "\n</pre>\n");
mg_printf(conn, "</body></html>\n");
return true; return true;
} }
}; };